# Program to calculate simple interest in ruby

Ruby Program to calculate simple interest. Here more solutions.

```
# Ruby program for
# Calculate simple interest
# Method which is take three parameters
# And calculates that simple interest
# Here time is form in year
# rate is form of annual interest rate
def simpleInterest( principle, time, rate)
# Display parameters values
print("Principle : ",principle,"\n")
print("Time : ", time,"\n")
print("Rate : ", rate,"\n")
# Calculate interest
amount = (principle * time * rate) / 100
# Display amount
print("Simple Interest : ",amount ,"\n\n")
end
# Test Cases
simpleInterest(1500, 3, 7.3)
simpleInterest(170.4, 7, 3.4)
```

**Output**

```
Principle : 1500
Time : 3
Rate : 7.3
Simple Interest : 328.5
Principle : 170.4
Time : 7
Rate : 3.4
Simple Interest : 40.55519999999999
```

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